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script.js
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// script.js
var originalHTML, fontSize;
let inPreview = false;
function start() {
addEventListeners();
// get the value of 1em
fontSize = parseFloat(getComputedStyle(document.querySelector('p')).fontSize);;
adjustContentMargin();
tippy("#text-cta-button", {
content: 'Link: <input id="text-cta-link" style="width:20em;">',
trigger: 'click',
onMount(instance) {
setupLinkInput();
},
interactive: true,
allowHTML: true
});
}
function setupLinkInput() {
let inputElement = document.getElementById("text-cta-link");
let buttonCTA = document.getElementById("button-cta");
inputElement.value = buttonCTA.href;
inputElement.addEventListener('change', function (e) {
buttonCTA.href = inputElement.value;
});
}
function getHTML(saveType) {
saveType = saveType || false;
let newDocument = new DOMParser().parseFromString(document.body.innerHTML, 'text/html');
// Format the main body text
let textBody = newDocument.getElementById("text-body");
textBody.setAttribute('contenteditable', false);
textBody.style.height = 'auto';
textBody.style.resize = 'none';
textBody.style.resize = 'none';
// Format the title
let textTitle = newDocument.getElementById("text-title");
textTitle.setAttribute('contenteditable', false);
// Format the footer
let textSubheading = newDocument.getElementById("text-subheading");
textSubheading.setAttribute('contenteditable', false);
let textCTA = newDocument.getElementById("text-cta");
textCTA.setAttribute('contenteditable', false);
// Enable the links
let buttonCTA = newDocument.getElementById("text-cta-button");
buttonCTA.setAttribute('contenteditable', false);
if (saveType) {
newDocument.getElementById("button-wrapper").remove();
newDocument.querySelectorAll("script").remove();
}
return newDocument.body.innerHTML;
}
function togglePreviewEmail(e) {
if (!inPreview) {
originalHTML = document.body.innerHTML;
let newHTML = getHTML();
document.body.innerHTML = newHTML;
document.getElementById("preview-button").innerText = "Edit";
// Must add the event listeners back on
addEventListeners();
adjustContentMargin();
inPreview = true;
} else {
document.body.innerHTML = originalHTML;
document.getElementById("preview-button").innerText = "Preview";
addEventListeners();
inPreview = false;
}
}
function saveEmail() {
let saveHTML = getHTML('save');
var cssStyles = "";
for(var i=1; i<document.styleSheets.length; i++) {
var style = null;
with (document.styleSheets[i]) {
if (typeof cssRules != "undefined")
style = cssRules;
else if (typeof rules != "undefined")
style = rules;
}
for(var item in style) {
if(style[item].cssText != undefined)
cssStyles += (style[item].cssText);
}
}
script = '<script>function adjustContentHeight(){let fontSize=parseFloat(getComputedStyle(document.querySelector("p")).fontSize);let height=document.getElementById("footer").clientHeight;let contentElement=document.getElementById("content");let initialHeight=contentElement.clientHeight;contentElement.style.height=initialHeight+fontSize+height+"px";contentElement.style.marginBottom="1em";}<\/script>';
style = '<style>' + cssStyles + '</style>';
saveHTML = '<html><head>' + style + '</head><body style="box-shadow:0 0 0.1em 0 rgba(0,0,0,0.3);margin:1em auto;flex:1;padding:0;position:relative;font-family:\'Nunito\',\'Avenir\',sans-serif;max-width:40em;" onload="adjustContentHeight();">' + saveHTML + script + '</body></html>';
downloadFile(saveHTML, "email.html", "text/html");
}
function addEventListeners() {
document.getElementById("button-cta").addEventListener('click', function(e) {
if (!inPreview) {
e.preventDefault();
}
});
document.getElementById("preview-button").addEventListener('click', togglePreviewEmail);
document.getElementById("save-button").addEventListener('click', saveEmail);
document.querySelectorAll(".text").forEach(function(el) {
el.addEventListener("keydown", function(e) {
if (e.keyCode === 8 && e.target.innerText.trim() === "") {
e.preventDefault();
}
});
});
document.querySelectorAll(".text").forEach(function(el) {
el.addEventListener("keydown", function(e) {
if (e.keyCode === 13 || e.keyCode === 8) {
window.setTimeout(adjustContentMargin, 50);
}
});
});
}
function adjustContentMargin() {
// Add the footer height as a bottom margin to the content
let height = document.getElementById("footer").clientHeight;
let contentElement = document.getElementById("content");
contentElement.style.marginBottom = fontSize + height + 'px';
}
Element.prototype.remove = function() {
this.parentElement.removeChild(this);
}
NodeList.prototype.remove = HTMLCollection.prototype.remove = function() {
for(var i = this.length - 1; i >= 0; i--) {
if(this[i] && this[i].parentElement) {
this[i].parentElement.removeChild(this[i]);
}
}
}
// Pasted from Stackoverflow, courtesy of Kanchu
// Function to download data to a file
function downloadFile(data, filename, type) {
var file = new Blob([data], {type: type});
if (window.navigator.msSaveOrOpenBlob) // IE10+
window.navigator.msSaveOrOpenBlob(file, filename);
else { // Others
var a = document.createElement("a"),
url = URL.createObjectURL(file);
a.href = url;
a.download = filename;
document.body.appendChild(a);
a.click();
setTimeout(function() {
document.body.removeChild(a);
window.URL.revokeObjectURL(url);
}, 0);
}
}